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Finding the Fourth Proportional to 1,205,433, 1,663,575.30 and 668,889

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Solution

The fourth proportional to 1,205,433, 1,663,575.30 and 668,889 is: 923,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,433 : 1,663,575.30 = 668,889 : x
  2. Step 2: Convert to fraction form
    1,205,433/1,663,575.30 = 668,889/x
  3. Step 3: Cross multiply
    1,205,433x = 1,663,575.30 × 668,889
  4. Step 4: Simplify right side
    1,205,433x = 1,112,747,218,841.70
  5. Step 5: Solve for x
    x = 1,112,747,218,841.70/1,205,433
  6. Step 6: Final answer
    x = 923,109.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.